Apple Seeds Second Betas of iOS 16.3 and iPadOS 16.3 to Developers

Apple today seeded the second betas of upcoming iOS 16.3 and iPadOS 16.3 updates to developers for testing purposes, with the new betas coming a month after the introduction of the first betas.

iOS 16
Registered developers can download the iOS 16‌.3 and iPadOS 16.3 profiles from the Apple Developer Center, and once installed, the beta will be available over the air.

iOS 16.3 and iPadOS 16.3 add support for physical Security Keys that can be used as added protection for an Apple ID. Any FIDO Certified physical security key can be linked to an ‌Apple ID‌ to be used for authentication when logging into a new device or otherwise accessing an ‌Apple ID‌.

Security Keys replace the digital verification codes sent to an Apple device when using an ‌Apple ID‌, and Apple says that the physical key provides strong protection against phishing and unauthorized account access. Note that two physical security keys are required when using this feature as there needs to be a backup in case one is lost. Losing a security key would revoke access to an ‌Apple ID‌, as Apple cannot override the protection.

In addition to Security Keys, the beta also adds more instruction for transferring music from an iPhone over to a HomePod using handoff. No other new features have been discovered at this time.

Related Forum: iOS 16

Popular Stories

airpods translate

AirPods Live Translation Blocked for EU Users With EU Apple Accounts

Thursday September 11, 2025 4:01 am PDT by
Apple's new Live Translation feature for AirPods will be off-limits to millions of European users when it arrives next week, with strict EU regulations likely holding back its rollout. Apple says on its feature availability webpage that "Apple Intelligence: Live Translation with AirPods" won't be available if both the user is physically in the EU and their Apple Account region is in the EU....
iPhone 17 Pro Colors

iPhone 17 and iPhone 17 Pro Models Are eSIM-Only in These Countries

Tuesday September 9, 2025 12:23 pm PDT by
Apple continues to phase out the physical SIM card tray on iPhones, with the latest models relying solely on eSIM technology in more countries. The new iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max support eSIMs only in these countries and regions, according to Apple: Bahrain Canada Guam Japan Kuwait Mexico Oman Qatar Saudi Arabia United Arab Emirates Un...
iPhone 17 Pro Colors

Didn't Pre-Order a New iPhone Yet? Here's How Long the Wait is Now

Friday September 12, 2025 6:11 am PDT by
iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air pre-orders began at 5 a.m. Pacific Time in the U.S. and many other countries today. If you have yet to place a pre-order, you might face a longer wait now, depending on your desired configuration. As of shortly after 6 a.m. Pacific Time today, nearly all iPhone 17 Pro Max configurations on Apple's online store in the U.S. are facing ...
iPhone 17 Pro Colors

iPhone 17 and iPhone 17 Pro: Release Date and Pre-Orders

Wednesday September 10, 2025 12:30 am PDT by
Apple held its annual iPhone event on Tuesday, September 9, to unveil the iPhone 17, ultra-thin iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max. All of the new iPhone models will be available to pre-order starting Friday, September 12 at 5 a.m. Pacific Time / 8 a.m. Eastern Time in the U.S. and dozens of other countries, according to Apple. The release date for the devices is one week...
iPhone 17 Pro Cosmic Orange

Skipping the iPhone 17 Pro? Here's What's Rumored for iPhone 18 Pro

Wednesday September 10, 2025 8:33 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still a year away, there are already a few rumors about the devices that offer an early look ahead. If you are skipping the iPhone 17 Pro and want to know about what to expect from the iPhone 18 Pro models, we have recapped a few of the key rumors below. Under-Screen Face ID In April 2023, display industry analyst Ross Young shared a...
iPhone 17 Pro Colors

Apple Announces iPhone 17 Pro and Pro Max With New Design, Larger Battery, and More

Tuesday September 9, 2025 10:59 am PDT by
Apple today introduced the iPhone 17 Pro and iPhone 17 Pro Max. Both devices feature a new aluminum unibody design, with the Ceramic Shield now protecting both the front and back sides. Apple says the front side is now Ceramic Shield 2, which offers 3x better scratch resistance, while the rear Ceramic Shield is advertised as 4x more resistant to cracks compared to the back glass on previous...
iphone 17 pro dark blue

The Camera Plateau: What's New With the iPhone 17 Pro Cameras

Wednesday September 10, 2025 3:53 pm PDT by
With the iPhone 17 Pro and 17 Pro Max, Apple introduced a new design for the rear of the device. Instead of a camera bump, we now have a camera plateau that spans almost the entire back of the iPhone. The camera plateau houses an upgraded camera system that includes a revamped Telephoto lens. All three of the iPhone 17 Pro and Pro Max cameras are 48 megapixels, and there are five zoom...
better iphone 17 lineup

Apple Lists iPhone 17, iPhone Air, and iPhone 17 Pro Battery Capacities

Tuesday September 9, 2025 1:25 pm PDT by
Apple has confirmed the battery capacities for the iPhone 17, iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max models that were announced earlier today. Apple is required to publish energy labels on its iPhone product pages in the EU, and they reveal the official mAh battery capacities for the devices. Here are the battery capacities for each model, according to Apple: iPhone 17:...

Top Rated Comments

Bl0ckHe1d Avatar
35 months ago
Any fix to the Homekit and Matter nightmare?
Score: 10 Votes (Like | Disagree)
TheYayAreaLiving ?️ Avatar
35 months ago
Ahhh! After 3 long weeks. It's finally here. Thank you! Rock n Roll iOS 16.3 Beta 2! ;)
Score: 7 Votes (Like | Disagree)
fatTribble Avatar
35 months ago
Can’t say the features are useful to me, but hopefully 16.3 will fix some 16.2 sluggishness.
Score: 6 Votes (Like | Disagree)
hovscorpion12 Avatar
35 months ago
The security key feature is my most excited feature
Score: 6 Votes (Like | Disagree)
Realityck Avatar
35 months ago
Released today

* iOS 16.3 beta 2 (20D5035i) - January 10, 2023
* iPadOS 16.3 beta 2 (20D5035i) -January 10, 2023
* macOS 13.2 beta 2 (22D5038i) - January 10, 2023
* watchOS 9.3 beta 2 (20S5637h) - January 10, 2023
* tvOS 16.3 beta 2 (20K5637g) - January 10, 2023
Score: 6 Votes (Like | Disagree)
Realityck Avatar
35 months ago
Installing the iPadOS 16.3 beta 2 currently. Being this long a gap I expect some changes/fixes.

There are no new release notes for this beta 2 software update.
Score: 5 Votes (Like | Disagree)